She's real! Jennifer Lopez set the record straight on widespread rumors that she is dating her much younger costar Ryan Guzman on Tuesday, Jan. 20, when she appeared on The Ellen DeGeneres Show

The Grammy winner, 45, stars alongside Guzman, 27, in the upcoming thriller The Boy Next Door. Lopez plays a woman named Claire, who gets romantically involved with the young man living in the house next to hers before things take a dangerous turn. 

Asked about her leading man, Lopez denied that they were dating but told Ellen DeGeneres, "He's very cute... He's so fun. He's a real sweet... He's a gentleman."

Speculation that the two actors are a couple heated up last week when Lopez attended the 2015 Golden Globe Awards on Guzman's arm. 

"We are doing all this promo together, for the movie," she explained. "So we walked the carpet at the Globes together... We arrived separately, but then later we went to the parties together. We had some fun and it was good."

Lopez went on to add that Guzman "seemed older" than 27, and as far as she knows, he has a girlfriend, but she's "not in his business like that." The mother of two then addressed the "cougar" label she's been given after her relationship with now-ex Casper Smart, 27, and how she feels about the designation.

"There's nothing wrong with that," she said about being a cougar. "I hate that they have a label for a woman who would date a younger guy. If a younger guy is interested in you, what’s the big deal? What's the word for the man who's after younger girls?"

"I'm not after younger guys," Lopez continued. "If younger guys like me then that’s one thing. But there’s like guys who just go after younger women. They have no name, no label." 

The singer's appearance on The Ellen DeGeneres Show comes just weeks after Lopez spilled to Us Weekly exclusively about her relationship status. In addition to talk of her supposed coupling with Guzman, the star was also rumored to be rekindling with dancer-choreographer Smart, from whom she split last June.

"I'm single right now," she told Us on Jan. 8. "I think being on my own has been really great for me."